Note
- This view is available starting with V4.3.3 in V4.3.x.
- This view is available starting with V4.2.3 in V4.2.x.
Purpose
The DBA_OB_LS_REPLICA_TASK_HISTORY view displays the execution history of disaster recovery tasks for all tenants.
Columns
Column |
Type |
Nullable |
Description |
|---|---|---|---|
| LS_ID | NUMBER(38) | NO | The ID of the log stream. |
| TASK_TYPE | VARCHAR2(64) | NO | The type of the task. Valid values:
|
| TASK_ID | VARCHAR2(200) | NO | The ID of the task. |
| TASK_STATUS | VARCHAR2(2048) | YES | The status of the task. Valid values:
|
| PRIORITY | CHAR(5) | NO | The priority of the task. Valid values:
|
| TARGET_REPLICA_SVR_IP | VARCHAR2(46) | YES | The IP address of the server where the target replica resides. |
| TARGET_REPLICA_SVR_PORT | NUMBER(38) | YES | The port of the server where the target replica resides. |
| TARGET_PAXOS_REPLICA_NUMBER | NUMBER(38) | YES | The number of required Paxos member replicas in the log stream. |
| TARGET_REPLICA_TYPE | VARCHAR2(16) | YES | The type of the target replica. |
| SOURCE_REPLICA_SVR_IP | VARCHAR2(46) | YES | The IP address of the server where the source replica resides. |
| SOURCE_REPLICA_SVR_PORT | NUMBER(38) | YES | The port of the server where the source replica resides. |
| SOURCE_PAXOS_REPLICA_NUMBER | NUMBER(38) | YES | The number of required Paxos member replicas in the log stream. |
| SOURCE_REPLICA_TYPE | VARCHAR2(16) | YES | The type of the source replica. |
| DATA_SOURCE_SVR_IP | VARCHAR2(46) | YES | The IP address of the data source. |
| DATA_SOURCE_SVR_PORT | NUMBER(38) | YES | The port of the data source. |
| IS_MANUAL | CHAR(6) | NO | The source of the disaster recovery task. Valid values:
|
| TASK_EXEC_SVR_IP | VARCHAR2(46) | YES | The IP address of the server where the task is executed. |
| TASK_EXEC_SVR_PORT | NUMBER(38) | YES | The port of the server where the task is executed. |
| CREATE_TIME | TIMESTAMP(6) | NO | The time when the task was generated. |
| START_TIME | TIMESTAMP(6) | NO | The time when the task was scheduled. |
| MODIFY_TIME | TIMESTAMP(6) | NO | The time when the status of the task was updated. |
| FINISH_TIME | TIMESTAMP(6) | NO | The time when the task was completed. |
| EXECUTE_RESULT | VARCHAR2(2048) | YES | The execution result of the task. |
| COMMENT | VARCHAR2(2048) | YES | The remarks on the reason for generating the task. |
| CONFIG_VERSION | VARCHAR2(128) | YES | The config_version of the clog layer when the disaster recovery task was executed.
NoteThis column is available starting with V4.4.0. |
Sample query
Query the execution history of disaster recovery tasks and display the first record.
obclient [SYS]> SELECT * FROM SYS.DBA_OB_LS_REPLICA_TASK_HISTORY WHERE ROWNUM <= 1\G
The query result is as follows:
*************************** 1. row ***************************
LS_ID: 1
TASK_TYPE: ADD REPLICA
TASK_ID: YB42AC1E87D7-000639016D9D7F1A-0-0
TASK_STATUS: COMPLETED
PRIORITY: HIGH
TARGET_REPLICA_SVR_IP: 172.xx.xxx.243
TARGET_REPLICA_SVR_PORT: 2882
TARGET_PAXOS_REPLICA_NUMBER: 3
TARGET_REPLICA_TYPE: FULL
SOURCE_REPLICA_SVR_IP: 172.xx.xxx.254
SOURCE_REPLICA_SVR_PORT: 2882
SOURCE_PAXOS_REPLICA_NUMBER: 2
SOURCE_REPLICA_TYPE: FULL
DATA_SOURCE_SVR_IP: 0.0.0.0
DATA_SOURCE_SVR_PORT: 0
IS_MANUAL: FALSE
TASK_EXEC_SVR_IP: 172.xx.xxx.243
TASK_EXEC_SVR_PORT: 2882
CREATE_TIME: 10-JUL-25 10.58.24.570903 AM
START_TIME: 10-JUL-25 10.58.07.509494 AM
MODIFY_TIME: 10-JUL-25 10.58.24.570903 AM
FINISH_TIME: 10-JUL-25 10.58.24.000000 AM
EXECUTE_RESULT: ret:0, OB_SUCCESS; elapsed:17054428;
COMMENT: add paxos replica according to locality
CONFIG_VERSION:
*************************** 2. row ***************************
LS_ID: 1
TASK_TYPE: MIGRATE REPLICA
TASK_ID: YB42AC1E87D7-000638FE21BE24C2-0-0
TASK_STATUS: COMPLETED
PRIORITY: HIGH
TARGET_REPLICA_SVR_IP: 172.xx.xxx.231
TARGET_REPLICA_SVR_PORT: 2882
TARGET_PAXOS_REPLICA_NUMBER: 3
TARGET_REPLICA_TYPE: FULL
SOURCE_REPLICA_SVR_IP: 172.xx.xxx.243
SOURCE_REPLICA_SVR_PORT: 2882
SOURCE_PAXOS_REPLICA_NUMBER: 3
SOURCE_REPLICA_TYPE: FULL
DATA_SOURCE_SVR_IP: 0.0.0.0
DATA_SOURCE_SVR_PORT: 0
IS_MANUAL: FALSE
TASK_EXEC_SVR_IP: 172.xx.xxx.231
TASK_EXEC_SVR_PORT: 2882
CREATE_TIME: 04-JUL-25 11.21.08.294737 AM
START_TIME: 04-JUL-25 11.20.50.723082 AM
MODIFY_TIME: 04-JUL-25 11.21.08.294737 AM
FINISH_TIME: 04-JUL-25 11.21.08.000000 AM
EXECUTE_RESULT: ret:0, OB_SUCCESS; elapsed:17570758;
COMMENT: shrink unit task
CONFIG_VERSION:
2 rows in set
References
View the execution history of disaster recovery tasks for all tenants: CDB_OB_LS_REPLICA_TASK_HISTORY
View the running disaster recovery tasks for all tenants: CDB_OB_LS_REPLICA_TASKS
View the running disaster recovery tasks for the current tenant: DBA_OB_LS_REPLICA_TASKS